Acid zinc trivalent black passivation Zn-127

A black passivator without hexavalent chromium, suitable for rack and barrel plating.  Used with a sealer to produce a dense black passivation layer on acid zinc chloride coatings. When used with sealant, the anti-white rust time of 5% salt spray test is ≧72 hours. Excellent impurity resistance. The bath has a long service life. Easy to operate and maintain. Collision or friction scratches are automatically repaired in barrel plating or automatic wire passivation Guangdong Bigely Technology Co.,Ltd Address:Xiyanglin Industrial Zone,Jieyang City, Guangdong Province, China Website: https://www.bigelaizincplating.com Alibaba: https://bigely.en.alibaba.com Mobile: +86-18026024810 Email: sale01@bigelaizincplating.com

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